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Posted by dbreunig 1 day ago

Astra can read and write weights to improve Qwen(rikiyat.github.io)
2927 points | 879 commentspage 11
olirex99 1 day ago|
I am not sure on the experiments. For example let’s imagine that Astra is asked to improve the performance of a network.

At first Astra will look at the weights, and try to understand the model behavior. Then if asked he will start to optimize the weights. Now my question is: how can we be sure that inside the thinking process Astra is not hiding a gradiant descending computation?

jamez1 1 day ago||
In hindsight, it was obvious LLMs would be good at this. The neural net weights are embeddings for the circuits within, no different from the embeddings that represent textual or visual tokens.

You probably don't need Astra capability to produce this, just lots of training data on the same NN showing prompts and their activations.

jdoliner 1 day ago||
This plus the interpretability result from a few weeks ago have completely upended my understanding of what model weights are.
ev01ve 1 day ago|
I might have missed this, could you share a link?
jchook 16 hours ago||
It was very funny to expand the prompts.

> Learns what the model is trained to do just from the weights!!

expand prompt

> Describes Breakout in great detail

canyon289 1 day ago||
As the creator of Gemma3 270m this research is indeed fascinating, and excited to see that the authors of the paper and you all are excited as well. I'm going to try some experiments out myself, I have so many questions now
bilsbie 1 day ago||
GOOD Point by my wife. Why would LLM’s have any understanding of weights? It wouldn’t be in their training data.
tiborsaas 1 day ago||
LLM-s operate in a higher dimensional space and they produces a 1D stream of tokens. We think of the output as all there is to how they work.

It seems like that raw weights are still within the natural language of an LLM and they can easily map weights to a latent space representation, do a transformation and map it back.

I feel that asking about training data is missing the point, they might all be able to do it naturally like I can move in 3D compared to a 2D being living on Flatland.

slopnt 1 day ago|||
it probably is. its very likely they train their models with weights for some tasks
woah 1 day ago||
Why not?
parasti 22 hours ago||
I had to stop reading the linked page once I realized it is melting my brain because it is repeating the same three/four one-liners in different formats.
harvey7 1 day ago||
Does this work for any LLM other than Astra? The work seems suspiciously specific on GPT Astra.
kikdij 1 day ago||
That's a major breakthrough. I just hope it can scale at some point, though, because right now they're dealing with only very small models (well that is, in the LLM space).

Especially exciting to me is the fact that it may make the models be _auditable_. That would be a game changer.

djfergus 1 day ago|
Amazing and well presented research, this is fascinating.

I assume this technique could be applied to quickly and cheaply benchmaxx new models.

“Make this model better at math by fixing loops” seems like a harder problem than “make this model score higher on this benchmark”

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